Is the right of preemption voided if the claimant forgets to demand it or forgets the sale?

Primary text

If the claimant states that he forgot to make the demand or forgot the sale, his right of preemption is voided. This is because the right of preemption is an option that must be exercised immediately (*khiyar 'ala al-fawr*). Delay due to forgetfulness invalidates it, similar to rejecting goods due to a defect, or when a freed slave forgets to allow her husband marital access.